Pityriasis rosea is an acute, benign, self-limiting skin rash.

玫瑰糠疹是一种急性的良性自限性皮疹。

Scratching exacerbates a skin rash.

皮疹搔后会恶化。

She suffers from a contact skin rash.

她患上了一种接触传染性皮疹。

A skin rash may be accompanied by fever.

出皮疹时可能伴有发热现象。